baber/WOPTO huggingface dataset:
Patent GB-611459-A (GB)
Title: Improvements in and relating to cutter-heads for sound recording
IPC: H04R11/08
Filed: 1946-05-01
Abstract: 611,459. Gramophone pick-ups. WILLIAMS, F. E. May 1, 1946, No. 13120. [Class 40 (iv)] In a balanced armature recording head the natural frequency of vibration of the armature assembly is made comparatively low, e.g. between 2000 and 3000 c/s., and an external electric circuit connected with the coil provides a high impedance at frequencies approximating to the natural resonance frequency and a low impedance at higher frequencies. This arrangement compensates for the peak in the response curve at the mechanical resonance frequency and also for the fall in response at frequencies above this. In one construction which provides a suitable mechanical resonance frequency by reducing the stiffness of the control, the armature 1, Fig. 2, is carried on a metal rod 4 which is clamped at 5 to provide a torsional restoring force and supported at its other end in a soft rubber bush 7. A damping force which is proportional to velocity is provided by a block 10 of rubber or other resilient material surrounding the torsion rod 4. Suitable materials are those known under the Registered Trade Marks " Chlorovene " and " Thiokol." A suitable electrical circuit, shown in Fig. 5, comprises a condenser C which resonates with the recording head winding at approximately 5000 c/s. and which is bridged by an inductance L to provide a rejector circuit at the mechanical resonance frequency. Electrical damping at the two resonance frequencies may be provided by a resistor R.
Patent GB-567312-A (GB)
Title: Improvements in or relating to free-wheel clutches for cycles and the like
IPC: F16D41/30
Filed: 1943-08-13
Abstract: 567,312. Freewheel clutches. BIRMINGHAM SMALL ARMS CO., Ltd., and STOHANZL, V. J. Aug. 13, 1943, No. 13121. [Class 80 (ii)] A freewheel clutch comprises a sprocket wheel 23 with ratchet teeth 21 co-operating with pawls 7 carried in an inner member 1. A spring 11 for each pawl 7 is slidably supported in a narrow slot 9 in the member 1 and has a portion 13 engageable with a pawl and a portion 19 engaging a ratchet tooth 21. In the driving position shown, the part 13 holds the pawl 7 in its engaging position. If the rotation of the sprocket 23 is stopped the pawl is pressed inwardly and pushes the spring 11 to the left, Fig. 2, so that the device freewheels silently. When the sprocket is again rotated the end of the portion 19 is engaged by a ratchet tooth to move the spring 11 to the right and re-engage the pawl 7 . A pin 27 guides the spring 11. In a modification, the spring 11 is of U -shape and is slidably guided in its slot by a grooved plug.
Patent GB-650492-A (GB)
Title: Improvements relating to mimic diagram panels for railway and other indication systems
IPC: B61L25/08
Filed: 1948-05-13
Abstract: 650,492. Railway signalling illuminated diagrams. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., PETER, L. H., and SHEPPARD, E. A. May 13, 1948, No. 13147. [Class 105] [Also in Groups XI, XX, XXXVI and XXXVIII] A railway signalling illuminated miniature diagram panel 1 is of transparent material illuminated at one or more of its edges as by longitudinal lamps 6, 7, whereby, through internal reflection within the panel material, the track lines or other fixed representations which are painted or etched on the rear surface of the panel become luminous while variable information such as the particular route set up or the occupation of a track section is shown by superimposed lighting such as cross-lines of light of green or red colour derived from surface-notched strips 8, Fig. 5, at the rear of the panel 1 each of which is supplied longitudinally with light from one or other of two enclosed coloured lamps through light-conducting rods 19 or 20,21 of transparent material, Fig. 4. The other end of each strip is made opaque. Figs. 7 and 8 show the form of lamp used for the variable information. The lamp casing 35 of insulating material has an exteriorly screwed nozzle end 33 by which the casing is mounted on a support 18, Fig. 4, while such nozzle receives the light-conducting rod 19 ; the casing has electric terminal lugs 39 which extend to the closed end of bayonet slots 36 in which are received lugs 42 of a plate 41 carrying a lamp holder piece 43 and a contact strip 49 for engaging the central contact pip 50 of the bulb 46. Reflectors 52, 53 surround the bulb, the reflector 53 being held in engagement by a helical spring 54 and having a colour filter 56, through which the light passes to the end of the transparent light-conducting rod 19. It will be seen that the bulb and its support base can be removed from the casing without disturbing the electrical connections. The visible representation may be given by a fluorescent action arising from light waves beyond the visible range. The Provisional Specification states that the panel may be concave to avoid extraneous light being reflected into the observer's eye.
Patent GB-268577-A (GB)
Title: Improvements in or relating to impulse transmitters for use in telephone or like systems
IPC: H04M1/34
Filed: 1926-05-25
Abstract: 268,577. Coventry Automatic Telephones, Ltd., and Collyer, J. E. May 25, 1926. Impulse transmitters. - A dial-operated impulse transmitter has a combined ratchet and lost-motion device between 7 : 1 gearing 1, 5 from the main spindle and the interrupter cam 14 loosely mounted on the spindle 6. A pawl 20, slidably engaging a radial slot 21 in the cam sleeve 7, also engages one of the threads of a double-threaded bush 12 fixed to the spindle 6. The pawl is held in place by a push-on cover 22 and its movement along the bush 12 is limited by pins 24 in either thread and a spiral plate spring 23. The cam 14 operates an interrupter spring to separate the impulsing springs twice per revolution. When the dial 2 is turned for the numeral 2 the spindle 6 is rotated say 2“ times; the pawl 20 contacts with the spring 23 after 1¢ revolutions, is then forced back to the next thread, and again after another half-revolution, and finishes 1“ turns from the respective pins 24. When the dial returns, after 1“ revolutions of the spindle 6, the cam 14 is revolved once, giving two impulses. The governor gear-wheel 8 is driven through a one-way clutch comprising a spring 11 wound round the wheel-hub 9 and a bush 10 fixed to the spindle 6. Means for positively preventing reverse rotation or over-shooting of the interrupter-cam may be provided.
Patent GB-132050-A (GB)
IPC: B64C35/00
Abstract: 132,050. Lake, C. J. Sept. 9, 1918 Resistance to propulsion, reducing.-A float for a hydroplane, hydro-aeroplane, or other floating body comprises an inverted vessel 1 having a series of transverse spaced aqua-foils 6, and buoyant bow.and stern portions 4, 5. A tap 14 is fitted to provide means for diminishing the entrapped air. The contour line of the foils 6 has an upwardly rearward inclination. The exhaust gases of the motor of the vessel are conducted by pipes 12 into the interior of the float for efflux at 7 between the foils 6. A non-return valve 13 prevents the flooding of the motor. Fig. 1 shows the application of the float to a hydro-aeroplane. The aerofoil 10 is set at a neutral angle of incidence relative to the float; the motor and exhaust pipe are indicated at 11, 12, respectively.
Patent GB-783562-A (GB)
Title: Working cylinders for internal combustion engines
IPC: F02F1/06
Filed: 1955-05-06
Abstract: 783,562. Cylinders; cooling. KLOCKNERHUMBOLDT-DEUTZ AKT.-GES May 6, 1955 [May 22,1954], No. 13226/55. Class 7(2) In an air-cooled cylinder 1, wherein the head 6 is attached thereto by the threaded parts 8 of bolts 7 screwed into the underside of the head, the bolts 7 engage with the same cylinder flange 2 which comprises a support for bolts 12 that secure the cylinder 1 to the engine housing 3. The head of each bolt 7 is arranged in a flange recess 11 and the bolts 7 and 12 are arranged in pairs and uniformly distributed around the flange. The sparking plug 5 and valves 4, only one of which is illustrated, are located in the cylinder head as shown.
Patent GB-874510-A (GB)
Title: Process for the separation of zirconium and hafnium
IPC: C01G25/04
Filed: 1960-04-13
Abstract: Zirconium and hafnium are separated by distribution of the oxychlorides between an aqueous chloride ion-containing solution and a liquid halogenated hydrocarbon containing a dissolved organic amine.  The process may be continuous or discontinuous and may be repeated several times.  The zirconium predominantly goes into the organic phase and the hafnium predominantly remains in the aqueous phase.  The aqueous phase may be a 2 N to 13 N solution of hydrochloric acid, and the chloride ion concentration may be increased by the addition of an alkali metal chloride or an alkaline earth metal chloride.  In examples zirconium oxychloride (zirconyl chloride) containing small amounts of hafnium, and hafnium oxychloride containing a small amount of zirconium, are dissolved in hydrochloric acid solutions and contacted with organic solutions of amines in which the solvents are chloroform, bromoform, 1,1,2,2-tetrachloroethane, methylene chloride, o-dichlorobenzene, a mixture of 1,2,3- and 1,2,4-trichlorobenzene, chlorobenzene, bromobenzene, benzyl chloride, 1,2-dibromoethane and 1,2,3-trichloroisobutane, and the amines are tribenzylamine, tri-n-butylamine, tri-n-octylamine and di-n-butylamine; in one case the hydrochloric acid solution contained lithium chloride. The zirconium in the organic phase is recovered by shaking with an aqueous solution of hydrochloric acid.  Zirconium dioxide and hafnium dioxide are obtained from the aqueous solutions by precipitation with ammonia and calcination of the precipitates.
Patent GB-145401-A (GB)
Title: Improvements in or relating to suspension devices for motor vehicles
IPC: B62D61/08
Filed: 1920-05-13
Abstract: 145,401. Federated Exporters, Ltd., (Assignees of Motte, C. M.). June 18, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 143,302. Equalizing load on wheels and springs; springs, arrangement of.-Consists of a modification of the device described in the parent Specification, the resilient or swinging members of that device now being caused to return to their normal position after movement by 'the provision of suitable springs operating in conjunction therewith. The links x, x<1> connecting the front and rear suspension springs d, e to the central swinging members f, have vertical springs y, y<1> connected to them, these springs being adjustably bolted at their lower ends to the body a. The springs may be disposed above the members f or may both be attached to the same end thereof, and may be disposed along the interior of the body or enclosed in suitable casings provided with lubricating-devices.
Patent GB-293525-A (GB)
Title: Improvements in or relating to refrigerating apparatus of the absorption type
IPC: F25B39/02
Filed: 1927-05-18
Abstract: 293,525. Fitzpatrick, H. D., (Lier, S. K. D. M. van.). May 18, 1927. Refrigerating, absorption machines for.-The solvent collecting in the lower part 21 of the evaporator of an absorption refrigerating machine is returned to the generator through a valved-pipe having a liquid seal 23 in that part of the pipe which is within the refrigerator. This is stated to prevent the formation of ice on that portion of the pipe which is outside the refrigerator.
Patent GB-753918-A (GB)
Title: Electrical multiplication circuit
IPC: G06F7/52
Filed: 1954-05-07
Abstract: 753,918. Digital electric calculating-apparatus. STANDARD TELEPHONES & CABLES, Ltd. May 7, 1954 [May 13, 1953], No. 13372/54. Class 106 (1). In an electrical circuit for multiplying two binary numbers represented by series-mode pulse trains, the trains are applied synchronously to opposite ends of a first delay line having taps regularly spaced at intervals corresponding to half a digit period, the taps are connected to regularly-spaced taps on a second delay line whose delay period is less than that between successive taps on the first line, means associated with the taps of the delay lines detect coincidence of impulses at the various taps of the first line, and the second line is connected to an output control circuit which responds to simultaneous coincidences in the first line to cause carry as required, whereby the output from the circuit represents the product of the two numbers. In the circuit shown in Fig. 1, 4-digit pulse trains (positive pulse for " 1," no pulse for " 0 ") are applied at 1, 5 via cathode followers X1, Y1 respectively to terminals 3, 8 of a delay line 4 having taps 9-13 spaced at 5Ás intervals. The points 3, 9-13, 8 are connected by diodes 21-27 to taps, spaced at ¢ Ás intervals, on a delay line 28 having an output terminal 31. Each diode is so biased by potentiometer 30 as to conduct only on coincidence of two impulses at its anode. The output pulses at 31 are applied to a counting chain of bi-stable vacuum- or gas-tube " flip-flop " circuits 40, 50, 60, Fig. 5, having anode load resistors 41, 42, 51, 52, 61, 62. These circuits are reset to the rest or " 0 " condition (righthand side conducting) at the end of every 5 Ás (or product digit) interval by a negative pulse from generator 34 applied through condensers 35, 75, 85 and diodes 44, 54, 64. If circuit 40 was previously registering " 1," such a pulse will charge appreciably the condenser 35 (resistance 42 being substantially smaller than resistance 38), and at the end of the pulse, a positive pulse will be applied through diode 37 and condenser 47 to product output terminal 36. Similarly, if a carry of " 1 " is registered on circuit 50 or 60, the pulse from 34 will cause a positive impulse to be fed back through diode 57 or 67 and delay line 59 or 69, providing a delay of 4 Ás or 9.5 Ás respectively, to the input of circuit 40. A simplification of the circuit of Fig. 1 (Fig. 2, not shown), comprising only one delay line, also is described.
Patent GB-419214-A (GB)
Title: Improvements in processes of manufacturing silicon carbide refractories and productsthereof
Filed: 1933-05-08
Abstract: A process for the manufacture of bonded silicon carbide refractories comprises forming a mixture of silicon carbide and a bond which is non - reactive with silicon carbide at temperatures up to the fusing point of the bond and which has a fusing point between 1800 and 2100 DEG  C., and heating the mixture at least to the temperature of incipient fusion of the bond, in an atmosphere which is inert with respect to both the carbide and the bond. Examples of suitable bonds are alumina, magnesian spinel, mullite and compounds of alumina, magnesia and silica, alumina lime and silica or alumina, magnesia and lime.  A carbon monoxide atmosphere is satisfactory for use with a bond of alumina, or mixtures of alumina, magnesia and lime, but where silica is a principal constituent of the bond, a more inert atmosphere such as nitrogen or helium is preferable.
Patent GB-1511927-A (GB)
Title: Machine mountings
IPC: E04B1/41
Filed: 1977-03-31
Abstract: 1511927 Machine mounting device G W LIGHT 31 March 1977 [2 April 1976] 13379/76 Heading F2H A device for use in the installation of fixing bolts in machine foundations comprises a box 1 provided with a funnel 2 having a mouth 4 of substantially greater cross-sectional area than throat 3 which has one cross-sectional dimension equal to the corresponding internal dimension of the box, and a cross-sectional dimension perpendicular to it which is substantially less than the corresponding internal dimension of the box.
Patent GB-133829-A (GB)
IPC: A21C7/02
Abstract: 133,829. Balcells, J., and Servitje, J. Nov. 29, 1918. Rolling-machines.-A dough moulding and curling machine comprises a rotary drum 11 having embossments 57, a sheeting-roller 13, a swinging- ing folder 29, an adjustable curved curling-pan 37 and an adjustable curved moulder 47. In the machine described, a pair of rollers 13, folders, &c. co-operate with the drum 11. The folders 29 are hung from the shaft 14 carrying the rollers 13 and are counterweighted at 31, their movement being limited by projections 40 on the pans 37. The curling-pans and moulders are interchangeably supported upon angle-irons 32, Fig. 1<a>, by means of bars 35, 36, Fig. 4, engaging in hooks 34. The pans 37 are furnished with angular strips 38 mounted on spring wires 39, and are connected by a bar 41 adjustable with respect to the drum by means of screws 43. The moulders 47, which may be in the form of a shovel or may be provided with transverse ridges, are adjustably connected to the ends of the curlers 37 by screw and slot connexions, 45, 46, Fig. 6a. A sieve 2, Fig. 1<a>, arranged above the drum is vibrated by projections 10 thereon to dust flour on to the drum and rollers 11. Dough is fed in through hoppers 4 carried by the sieve 2, and the moulded dough is delivered to a belt 53. Motion is imparted to the various parts from a shaft 23.
Patent GB-1128614-A (GB)
Title: Improvements in or relating to erectable structures, for example multi-unit fittings and the like
Inventor: KNIGHT RONALD EDWARD
IPC: F16B12/34
Filed: 1965-03-30
Abstract: 1,128,614. Furniture joints. WHITTING- HAM & MITCHELL Ltd. 1 March, 1966 [30 March, 1965], No. 13414/65. Heading A4H. Vertical moulded plastic panels 2 forming the sides of cupboard or drawer assemblies are connected to horizontal moulded plastic panels 4 by nylon fixing devices 7 which are held in locating holes (9) in the vertical panels 2, and which have spigots 12, 13 terminating in heads 14, 15 which are wedged into recesses 8 formed in flanges 5 on the edges of the horizontal panels 4. The flanges 5 also have keyhole slots 6 into which the shanks of the spigots are sprung. The undersurfaces of the heads of the spigots are chamfered and bear resiliently against the shoulders (18) between the keyhole slots 6 and the recesses 8. The body (10) of each fixing device 7 is frusto conical and has a shallow flange 11. The locating hole (9) into which each body 10 fits is in the form of two frusto conical portions and has three axial ribs 17 adapted to engage the flange 11. The vertical panels may have horizontal ribs for supporting drawer runners. The horizontal panels may have sockets for hinges and catches.
Patent GB-1456177-A (GB)
Title: Apparatus for measuring the electrical conductivity of a liquid
IPC: G01R27/22
Filed: 1975-04-02
Abstract: 1456177 Measuring conductivity by induction SOC ANON AUTOMOBILES CITROEN 2 April 1975 [5 April 1974] 13421/75 Heading G1N Apparatus for measuring the conductivity of a liquid by induction comprises two channels 2a, 2b connected in parallel and an induction coil and a measuring coil located respectively over the points of connection of the channels. Channels 2a, 2b are formed in base 1 and join at circular channels 3a, 3b. Liquid is fed in from inlet 7a. The induction coil former has four lugs 10 and a central core 12 which pass through holes 11, 12 in the base and is held co-axially with channel 3a. The measuring coil is similarly held co-axially with channel 4b. A cover 6 closes the channels. A temperature dependent resistor 18 may be held in contact with the base 1 and used for temperature compensation.
Patent GB-1271376-A (GB)
Title: Carrier bags
Inventor: MAYFIELD JOHN HENRY
IPC: B65D33/16
Filed: 1969-03-14
Abstract: 1,271,376. Carrier bags. MOORE & CO. (NOTTM.) Ltd. March 10, 1970 [March 14, 1969], No. 13440/69. Heading A4G. A carrier bag made from seamless plastics tube or tube made by folding and seaming a sheet or seaming the edges of two sheets, has a bottom seam 12, Fig. 1 and seams 16 at the tops of loop handles 14 formed by cutting off edge portions 22 and making longitudinal cuts 20 to form two closure flaps 18 between the handles, the flaps being secured to material within the bag or to each other. In the embodiment of Fig. 3, the tube has side gussets 26 and if the cuts 20 are formed in the gussets, four flaps 18A are formed.
Patent GB-1114385-A (GB)
Title: Manufacture of porous ceramic material
IPC: B28B7/34
Filed: 1966-03-25
Abstract: A porous ceramic is obtained by passing a sponge-like organic base material between pairs of rollers in a tank containing a slip of ceramic particles whereby a continuous coating forms on the internal surfaces of the pores, the base material is dried causing solidification of the coating and heated to sinter the ceramic and eliminate the base member.  Surplus slip is removed by compressed air and the viscosity of the slip can be reduced by adding sodium silicate or C.M.C.  The ceramic particles have a mean diameter less than 10 m .  Slip components are ball clay, chamette, feldspar, zinc oxide, alumina and talc.
Patent GB-834969-A (GB)
Title: Improvements in and relating to a self-propelled projectile
IPC: F42C15/30
Filed: 1958-04-29
Abstract: 834,969. Jet-propulsion plant. HOTCHKISS-BRANDT. April 29, 1958 [May 2, 1957], No. 13522/68. Class 110 (3). [Also in Group XXI] A nozzle T screwed into a projectile body 1 is closed by an ignition device P held in position by a shearable ring 56 and a nut 57 which secured an obturator disc 70 against the rear of -the device P. The hub 52 of a finned tail Q is screwed on to the nozzle and surrounds the forward end of a tube R for housing a launching cartridge, the tube R being secured by shearpins 84 and a resilient split-ring 83. Screwed into the tube R is a plug 86 having a cylindroconical recess 88 communicating with four equi-spaced radial slots 90, 91 leading to openings 92, 93 in the hub 52. Two opposed slots 90, 91 grip a rib 77 on the disc 70, so that by turning the tube R through 90 degrees the disc 70 can be rotated from a position in which two openings 74 in the disc coincide with passages 68, Fig. 3, in the device P to a position in which the disc 70 masks these passages, the first position of the obturator being used when the projectile is to be propelled only by the gases from the launching charge and the second position when the projectile is to be selfpropelled. Specification 768,295 is referred to.
Patent GB-135566-A (GB)
IPC: F02B57/10
Abstract: 135,566. Debnam, H. G. Nov. 22, 1918. Fixed-abutment type; working-fluid supply. - Relates to rotary internal-combustion engines of the type shown in Specification 106,328. The drum 1 carries liners 2 recessed to receive sleeves 3 with ports at 4 to admit the explosive mixture when ports 6 in the liner and ports in the drum are in registery therewith. The ports are normally kept closed by spring action. The mixture is compressed and driven into the hollow shaft from which it passes by a passage 13 to a valve 12 and thence by a port 14 to the combustion chamber. The valve 12 is normally kept closed by a spring 19.
Patent GB-442428-A (GB)
Title: Improvements relating to the handles of vehicular tools
IPC: A47L9/32
Filed: 1934-05-05
Abstract: 442,428. Carpet-sweepers. WINSLOW, E. N., 3551, Lythe Road, Shaker Heights, Ohio, U.S.A. May 5, 1934, No. 13629. Convention date, May 12, 1933. [Classes 61 (i) and 138 (i)] [See also Groups XXVIII and I] The handle and body of a wheeled tool such as a vacuum cleaner, carpetsweeper, or lawn-mower, are connected by an universal joint comprising a block pivotally secured to the two parts by pins at right angles to each other.